CBSE NEET 2017 Online Solution of Chemistry-1

These are MCQs of CBSE NEET 2017 with Solutions of chemistry

1. Name the gas that can readily decolourise acidified KMnO₄ solution :

• SO₂
• NO₂
• P₂O₅
• CO₂

2. Mechanism of a hypothetical reaction
X₂ + Y₂ => 2XY is given below :
(i) X₂ => X + X(fast)
(ii) X + Y₂ <=> XY + Y (slow)
(iii) X + Y => XY (fast)
The overall order of the reaction will be :

• 2
• 0
• 1.5
• 1

3. The element Z = 114 has been discovered recently. It will belong to which of the following family/group and electronic configuration ?

• Carbon family, [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²
• Oxygen family, [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴
• Nitrogen family, [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶
• Halogen family, [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵

4. The heating of phenyl–methyl ethers with HI produces

• iodobenzene
• phenol
• benzene
• ethyl chlorides

5. Which one is the correct order of acidity ?

• CH ≡ CH > CH₃ – C ≡ CH > CH₂ = CH₂ > CH₃ – CH₃
• CH ≡ CH > CH₂ = CH₂ > CH₃ – C ≡ CH > CH₃ – CH₃
• CH₃ – CH₃ > CH₂ = CH₂ > CH₃ – C ≡ CH> CH ≡ CH
• CH₂ = CH₂ > CH₃ – CH = CH₂ > CH₃ – C ≡ CH > CH ≡ CH

6. Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field ?

• K
• Rb
• Li
• Na

7. Predict the correct intermediate and product in the following reaction :

• 
• 
• 
• 

8. The equilibrium constant of the following are :
N₂ + 3H₂ ↔ 2NH₃ K₁
N₂ + 3O₂ ↔ 2NO K₂
H₂ + 1/2 O₂ => H₂O K₁ The equilibrium constant (K) of the reaction : 2NH₃ + 2/5 O₂ <= K => 2NO + 3 H₂O will be :

• 

9. Which one is the most acidic compound ?

• 

10. The correct increasing order of basic strength for the following compounds is :

•